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Accumulation of heavy metal pollution caused by traffic in forest trees in the park of Kerey and Janibek Khans of the city of Nur-Sultan, KazakhstanOriginal PaperSezgin Ayan, Dani Sarsekova, Gani Kenesaryuly, Ergin Yilmaz, Orhan Gülseven, Ilknur ŞahinJ. For. Sci., 2021, 67(7):357-366 | DOI: 10.17221/37/2021-JFS Air quality in Nur-Sultan, the fast-growing new capital city of Kazakhstan, has been poorly investigated. This research was carried in Kerey and Janibek Khans Park in Nur-Sultan, the capital city of Kazakhstan, which is affected by "different traffic density" on the roads. Three different categories of contamination (i) high pollution (distance from the main road 10-15 m), (ii) moderate pollution (distance from the side road 15-30 m), and (iii) low pollution (distance from the source of contamination 30-80 m) at different levels resulting from urban transportation were examined. The aim of the study is to determine the pollution accumulation amounts of Ni, Cd, Pb, Cr, Li, Co, Fe, and Zn in five different tree species: Norway spruce (Picea abies /L./ H. Karst.), blue spruce (Picea pungens Engelm.), Scots pine (Pinus sylvestris L.,), Siberian larch (Larix sibirica Ledeb.), and silver birch (Betula pendula Roth). Significant differences in Ni, Cd, Pb, Cr, Li, Co, Fe, and Zn accumulation amounts were determined between three different parts of the park exposed to different levels of contamination. Approximately twice higher Ni, 2.3 times Cd, 3.3 times Pb, 2.7 times Co, 1.6 times Zn accumulation were determined in the area exposed to high pollution than in the parts of the park exposed to low pollution. Cd deposition in the area exposed to high contamination was higher in silver birch than in Scots pine and Norway spruce, while Cr and Co deposition values were higher in Norway spruce than in birch and Scots pine. |
Lead immobilisation in mining contaminated soil using biochar and ash from sugarcaneOriginal PaperDaojarus Ketrot, Worachart WisawapipatPlant Soil Environ., 2021, 67(8):474-481 | DOI: 10.17221/57/2021-PSE Immobilisation of lead (Pb) and toxic elements in contaminated soils is of importance due to their persistence in the environment. Herein, we investigated the effects of sugarcane filter cake biochar (SFCB) and sugarcane bagasse ash (SBA) on the extractability of Pb and some toxic and potentially toxic elements (As, Cd, Cu, and Zn) in polluted mine soil samples from Lower Klity Creek, Thailand. The soil was equilibrated with the SFCB and SBA at the respective rates of 0, 1, and 5% (w/w) for 120 days at field capacity. The results revealed that both SFCB and SBA materials significantly (P < 0.05) decreased Pb extractability in the studied soil, and it stabilised after 56 days of incubation. At 120 days, the SFCB and SBA application at the rates of 5% SFCB, 5% SBA, 1% SFCB, and 1% SBA decreased the extractable Pb contents by 50.35, 40.81, 29.42, and 19.27%, respectively, compared to unamended soil. The SFCB and SBA materials also improved soil chemical properties by increasing the soil pH, available phosphorus, and extractable sulfur. At 5%, SFCB decreased As extractability and increased organic carbon in the studied soil. The Zn availability in the studied soil was also improved by SFCB and SBA addition. This study highlights the potential use of biochar and ash from the sugarcane industry to stabilise Pb and As in contaminated soils. |
Research on spring frost damage in cherriesOriginal PaperHüsnü Demirsoy, Leyla Demirsoy, Gregory A. LangHort. Sci. (Prague), 2022, 49(2):89-94 | DOI: 10.17221/91/2021-HORTSCI A frost occurred in spring following high temperatures in Michigan in 2007. It caused important crop losses. In this study, the damage the frost had on the flower buds of some cherry cultivars on 'Gisela 5' at the Southwest Michigan Research and Extension Center (SWMREC) and different cherry scion/rootstock combinations at the Clarksville Horticultural Experiment Station (CHES) were determined. In cherries, the frost damage at SWMREC varied from 26.7% to 99.3% depending on the cherry cultivar while it varied from 41.9 to 99.3% at CHES depending on the cherry combinations. 'Rainier/Gisela 6' at CHES and 'NY119' at SWMREC were promising. The bud development stage during the freeze, the cultivar, the rootstock, the ages of the trees and the low temperature level were effective in the spring frost resistance. |
Effects of different substrates on the runner production of the June-bearing strawberry cv. 'Senga Sengana'Original PaperVahid Avdiu, Bedri Dragusha, Egzona Hajra, Gezim HodolliHort. Sci. (Prague), 2022, 49(4):197-204 | DOI: 10.17221/27/2022-HORTSCI Producing high-quality daughter plants of the June-bearing strawberry is very important for fruit production around the year. This study was conducted to investigate the impacts of different substrates on the runner production of the June-bearing strawberry cultivar 'Senga Sengana'. In April 2019, strawberry mother plants were planted while the daughter plants were examined November 2019. The nursery trial field was separated into four substrate treatments, each included ten strawberry mother plants, approximately homogeneous. The place where the mother plants were planted was with the same substrate (PTS substrate "Pindstrup") and separated from the field for the rooting of the daughter plants. In the field for the rooting of the daughter plants, four types of substrates were used: The first substrate treatment (S1) (soil 50% - decomposed manure 50%); the second substrate treatment (S2) (PTS substrate "Pindstrup" with modules (pots) with a volume of 200 mL/daughter plant); the third substrate treatment S3 (river sand 50% - soil 50%); lastly, substrate treatment four S4 (sawdust 100%). During the research, several parameters were determined for the mother plants: the crown diameter, number of flowers, number of runners per plant, number of daughter plants per runner and number of daughter plants per plant. The examination of some of the qualitative parameters was also performed on the daughter plants: the crown diameter, root length and number of roots. Based on these parameters, the daughter plants were categorised according to the standards: A++, A+, A, A-, OS (out of the standard). From the examined results, it was concluded that S3 formed the largest number of daughter plants at 123 (A++ 19.1, A+ 45.1, A 28.7, A- 17.8, OS 12.3 plants); S2 formed 69.4 daughter plants, but with the highest standards (A++ 34.7, A+ 33.6, A- 1.1 plants); S4 formed 74.8 daughter plants (A++ 26.2, A+ 30.4, A 14 OS 4.2 plants), while S1 formed 62 daughter plants and showed the worst results for both the number of plants and the standard (A+ 7, A 3.8, A- 0.8, OS 50.4 plants). |
Break-even point analysis for milk production - Selected EU countriesOriginal PaperJan Syrůček, Luděk Bartoň, Jiří BurdychAgric. Econ. - Czech, 2022, 68(6):199-206 | DOI: 10.17221/40/2022-AGRICECON Unstable conditions in the milk market in the Czech Republic (CR) and in the European Union (EU), mainly due to volatility of milk prices, are increasing pressure on dairy farmers to maximise production at the lowest possible production costs. Break-even point (BEP) analysis is a useful tool in dairy herd management for determining minimum requirements for profitability. BEP values for milk yield and milk price were calculated based on data obtained from 95 dairy farms in the CR. BEP values were estimated also for another eight EU countries based upon production and cost data from the EU Farm Accountancy Data Network (FADN). With the milk price ranging from EUR 28 to EUR 38 per 100 L and while excluding subsidies, zero profitability would be achieved on Czech dairy farms with milk yields ranging from 6 706 L to 13 151 L per cow and from 7 450 L to 14 088 L per cow in Czech Fleckvieh (C) and Holstein (H) herds, respectively. In order to achieve 5% profitability, the milk yield would need to increase by 21%. Considerable variability exists among EU countries in estimated BEP values depending upon average milk yields, input prices, and milk prices in different countries. |
Antagonistic bioagent mechanisms of controlling potato soft rotReviewRichard Osei, Chengde Yang, Lingxiao Cui, Lijuan Wei, Mengjun Jin, Xingying WeiPlant Protect. Sci., 2022, 58(1):18-30 | DOI: 10.17221/166/2020-PPS Bacterial antagonists are effective as an alternative to synthetic bactericides in the control of potato soft rot. The use of bioagents reduces the application of synthetic bactericides, which are harmful to humans and the environment. However, the mechanisms of some bioagents, such as some fungi and bacteria, are not yet understood. This paper reviews the current situation of potato soft rot, biological controls, antagonistic bioagents and their mechanisms, application strategies and future directions in today's agriculture. These mechanisms include mycoparasitism, competition, rhizosphere colonisation, synthesis and release of metabolites. Bioagents increased the defensive system of plants by increasing the antioxidants genes, such as superoxide dismutase, peroxidase (POD) and catalase (CAT), and eventually increased the plant growth and yield production. |
Morpho-molecular diversity study of rice cultivars in BangladeshOriginal PaperMd Babul Akter, Azad Mosab-Bin, Mohammad Kamruzzaman, Reflinur Reflinur, Nazmun Nahar, Md Sohel Rana, Md Imdadul Hoque, Md Shahidul IslamCzech J. Genet. Plant Breed., 2022, 58(2):64-72 | DOI: 10.17221/69/2021-CJGPB Rice is one of the frontline cereals in the world and the major cultivated crop in Bangladesh. A total of eleven simple sequence repeats (SSRs) and thirteen sequence-tagged site (STS) markers were used to characterize twenty-four rice cultivars in Bangladesh. Twenty-four markers generated 60 alleles with 2.5 alleles per locus. The average polymorphism information content (PIC) value was 0.40, while the mean value of heterozygosity, gene diversity, and major allele frequency were recorded as 0.10, 0.48 and 0.62, respectively. However, the SSR markers showed more specificity and a higher discrimination power than the STS markers. The cluster analysis displayed four major clusters with a genetic similarity coefficient value of 0.73. The morphological analyses of the grain identified that Binadhan-20 and BRRI dhan34 had the longest and the shortest seed size, respectively, with a variable correlation between the seed length, width and length/width ratio. The phenol reaction test distinguished seven cultivars as japonica and seventeen cultivars as indica or an intermediate type. All these results regarding the phenotypic data and marker information will be useful for parental selection in modern rice breeding programmes. |
Comparison of the physical properties of soils belonging to different reference soil groupsOriginal PaperJan Vopravil, Pavel Formánek, Tomáą KhelSoil & Water Res., 2021, 16(1):29-38 | DOI: 10.17221/31/2020-SWR Soil properties can be influenced by long-term agricultural management practices as described in pedological literature. In this study, selected physical properties (particle density and bulk density, total porosity, maximum capillary water capacity, minimum air capacity, field capacity, permanent wilting point and available water capacity) of topsoils from different reference soil groups (Cambisols, Luvisols, Fluvisols, Chernozems and Phaeozems, Leptosols, Stagnosols and Gleysols) were sampled and analysed in the years 2016-2017. The topsoil samples were taken from points of so-called S (specific) soil pits to be sampled from the General Soil Survey of Agricultural Soils (GSSAS) which was accomplished in the years 1961-1970. In addition, some of the properties were also compared with those measured during the GSSAS. Recognising the properties, only the particle density, the maximum capillary water capacity, the permanent wilting point and the available water capacity of the topsoil of the individual soil groups were statistically significantly (P < 0.05) different. A comparison of the physical properties with those analysed after more than 40 years was performed, the bulk density increased and the total porosity decreased in the topsoil of the major part of the studied soil groups. |
Characterisation of soil phosphorus forms in the soil-plant system using radioisotopic tracer methodOriginal PaperAndrea Balla Kovács, Rita Kremper, János Kátai, Imre Vágó, Dóra Buzetzky, Eszter Mária Kovács, József Kónya, Noémi M. NagyPlant Soil Environ., 2021, 67(7):367-375 | DOI: 10.17221/458/2020-PSE Soil incubation and pot experiments were conducted to follow the sorption processes of added phosphorus (P) fertiliser using the radioisotope tracer technique. Increasing doses of P fertiliser (40, 80, 160, 320 mg P/kg soil) were added to Chernozem and Arenosol and incubated for 1, 3, and 13 weeks. After incubation, perennial ryegrass (Lolium perenne L.) was sown in one group of pots, and the experiment had been continuing for another 9 weeks. The yield, grass P uptake, isotopically exchangeable (PIE), water-soluble (PW), and ammonium lactate soluble phosphorus (PAL) fractions of soils were measured. On Chernozem, plant P uptake, PIE, PW and PAL were significantly less in the case of the longest incubation period compared to shorter incubations. This suggests a transformation of P into tightly sorbed form. On Arenosol, there were only small changes in the parameters as the incubation period increased, suggesting less intense P transformation to tightly sorbed form. The PW/PIE ratio enhanced with increasing P-doses, and the ratios were higher on Arenosol. On Arenosol, the higher P doses caused a greater increase of PW than on Chernozem. The PIE + PW showed a good correlation with plant P uptake proving this value can be a good indicator of plant-available phosphorus. |
Regulation of nitrogen balance and yield on greenhouse eggplant under biochar addition in MollisolOriginal PaperYao Wang, Meng Zhou, Meng Hou, Yimin Chen, Yueyu Sui, Xiaoguang JiaoPlant Soil Environ., 2022, 68(1):36-48 | DOI: 10.17221/393/2021-PSE Maintaining nitrogen (N) balance and inhibiting N leaching loss in the soil-crop system is crucial to maintaining yield and reducing the environmental pollution. This study investigated the effects of soil NO3--N content and accumulation, eggplant yield, N leaching and balance response to biochar addition, including regular fertilisation and irrigation (W + F), biochar addition with regular fertilisation and irrigation (W + F + B), and biochar addition with 20% fertilisation and irrigation reduction (0.8W + 0.8F + B) treatments. Compared with W + F, W + F + B and 0.8W + 0.8F + B increased soil NO3--N content in 0-40 cm and soil NO3--N accumulation in 0-20 cm, and raised harvest index, N surplus and balance. Simultaneously, 0.8W + 0.8F + B compared to W + F enhanced N use efficiency and N partial factor productivity, conversely, it decreased N dry matter production efficiency, N surplus and balance. Stepwise regression analysis demonstrated that the effect of NO3--N leaching lasted in 60 cm under biochar addition in the first year, and lasted in 20 cm without biochar application in the next year. Altogether, biochar addition with 20% fertilisation and irrigation reduction is the most suitable management strategy to decrease N surplus and leaching, and maintain eggplant N uptake in a two-year cycle system on greenhouse vegetables in Mollisols. |
Effect of phosphorus application on economic yield, quality and phosphorus utilisation efficiency of purple-fleshed sweetpotatoOriginal PaperMing Liu, Wenjing Fan, Rong Jin, Peng Zhao, Qiangqiang Zhang, Xiaoya Zhu, Jing Wang, Aijun Zhang, Zhonghou TangPlant Soil Environ., 2022, 68(10):451-458 | DOI: 10.17221/173/2022-PSE This study aims to explore the effect of phosphorus (P) application on the economic yield, quality, P accumulation, and P utilisation efficiency of purple-fleshed sweetpotato and to provide a basis for the P efficient utilisation and high crop yield. Field experiments were conducted in 2018-2019, and five P application rates (0, 10.9, 21.8, 32.7, and 43.6 kg P/ha, expressed as P0, P1, P2, P3, and P4, respectively) were set. The results showed that P application significantly increased the yield and commodity potato yield of purple-fleshed sweetpotato, and that of P3 treatment was the highest, followed by P2 treatment. P application also increased the starch content in the storage root and increased the reducing sugar and soluble sugar (except for P2 treatment). P fertiliser supply significantly increased P accumulation and dry matter production of purple-fleshed sweetpotato during the growth period of 90 to 120 days. When the P application rate was over 21.8 kg/ha, the fertiliser investment rate, apparent P utilisation efficiency and P agronomic efficiency decreased with the increase of the application rate. Considering all the indexes, the supply of 21.8 kg/ha P fertiliser can meet the demand for high economic yield and P efficient utilisation in purple-fleshed type sweetpotato under the condition of this experiment. |
Nitrogen factors for rainbow trout (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis) filletsOriginal PaperA Honzlova, H Curdova, L Schebestova, P Bartak, A Stara, J Priborsky, M Sandova, A Koubova, Z Svobodova, J VelisekVet Med - Czech, 2022, 67(12):628-637 | DOI: 10.17221/73/2022-VETMED Measures for consumer protection against food adulteration and misleading labelling are integrated into EU legislation, including methods for detecting misleading practices. Verification of the meat content is available for marine products, but not for salmonid fish due to the lack of standard nitrogen factors. This study aimed to establish nitrogen factors for rainbow trout (Oncorhynchus mykiss) and brook trout (Salvelinus fontinalis). The study analysed 340 fish from Czech fisheries obtained in the summer of 2018-2020. According to the established ISO methods, fillet samples with and without skin were analysed for their nitrogen content (protein), dry matter, ash, and fat. The recommended nitrogen factor for rainbow trout fillets with and without the skin is 3.07 ± 0.12 and 3.06 ± 0.14, respectively, and the nitrogen factor for fat-free rainbow trout fillets with and without the skin is 3.33 ± 0.15 and 3.29 ± 0.15, respectively. The recommended nitrogen factor for brook trout fillets with and without the skin is 3.16 ± 0.10 and 3.12 ± 0.09, respectively, and the nitrogen factor for fat-free brook trout fillets with and without the skin is 3.42 ± 0.13 and 3.36 ± 0.12, respectively. The established nitrogen factors will enable the analysis of the meat content to ensure that consumers purchase correctly described and labelled fish products. |
Impact of different factors degrading cork oak stands in the Mediterranean region: A case study from AlgeriaOriginal PaperSalah Eddine Younsi, Yasmine Adjami, Rym Ghanem, Billel Bouchaib, Mohamed Laid OuakidJ. For. Sci., 2021, 67(12):570-581 | DOI: 10.17221/77/2021-JFS In recent years, the cork oak forests that characterise the Mediterranean region have been exposed to various factors that result in their degradation. These cork oak trees, due to increasingly accentuated anthropogenic activity, undergo withering at different scales.The objective of the study is to assess the impact of various factors that degrade cork oak forests in the Mediterranean region located in northeastern Algeria, and this was achieved by prospecting 22 sampling locations. This allowed the creation of a database containing 745 trees that were observed and 27 measured variables. Different readings were then taken into consideration based on measurements and sometimes on ratings. The impact of several biotic and abiotic factors, which affect and damage the health of cork oak, was identified. These factors include in particular the infestations by xylomycetophagous insects such as Platypus cylindrus and Xyleborus sp., which can potentially infest the cork oak trees that we observed one year after bark harvesting. On the other hand, the stationary descriptors such as altitude, slope, exposure, etc., are important for the dendrometric and exploitation characteristics, but their unfavourable values do not necessarily lead to tree mortality; for example, medium to low slopes, associated with average altitudes of 600 m a.s.l., may ensure the healthiest trees like in our case study. Finally, we were able to find that certain decline factors may affect a particular category of trees, either because they are older, taller or have a large girth, or because they are subject to inadequate debarking. |
Agricultural market information in developing countries: A literature reviewReviewAgus Dwi NugrohoAgric. Econ. - Czech, 2021, 67(11):468-477 | DOI: 10.17221/129/2021-AGRICECON In most developing countries, the agricultural industry has the potential to alleviate poverty at a faster rate compared to other sectors. As such, many governments have initiated policies and programme to improve agricultural performance. However, some of these projects have not achieved success because the local agricultural markets are often controlled by a small group of stakeholders who tend to hide information in the market despite having huge market power. This paper aimed to determine the issues and impacts of the lack of market information in developing countries and to provide strategies for solving such problems. Results show that the presence of an oligopsonic market system, current information and communication technology (ICTs), the lack of market infrastructure and gender limitations are the main issues related to a lack of information. In turn, lack of information leads to an inefficient agricultural market, causes negative impacts on market participants, and ultimately leads to harmful socio-economic effects. Thus, to solve these problems, it is necessary to improve capacity building, increase access to ICTs and improve market infrastructure. |
Adaptability responses to drought stress in the oak species Quercus petraea growing on dry sitesOriginal PaperBayartaa NyamjavJ. For. Sci., 2022, 68(11):459-472 | DOI: 10.17221/123/2022-JFS We studied sessile oak (Quercus petraea) growing on six dry sites to understand adaptability responses to drought stress. Pedunculate oak (Quercus robur) on a moderately dry site was tested in parallel. We analyzed accessions from mostly dry sites that were less sensitive to soil drought and found that the growth performance ranking was not the same before and after treatment. We used phenological plasticity approaches to study seed development and plant development before and after drought: the treatments included stem length, root length, and collar diameter, as well as dry above- and below-ground biomass performance. Additionally, after drought treatment, osmolytes and root surface were tested in Q. petraea. According to the analyses and results, the ranked sites did not maintain their ranking status, with Q. petraea exhibiting different rates of growth during each developmental stage from seed development until the end of the treatment of plant material. The smallest seeds came from the driest site, which may indicate more adaptability to drought stress. After drought treatment, large differences were found between the dry biomass performance, stem length, root length, and collar diameter of oaks grown on different sites. The osmolality of Q. petraea on most of the dry sites was higher under the reduced treatment than under the optimal treatment, but not significantly. After drought treatment, all accessions - and especially those from the driest site - showed large differences in growth performance between the treatments. The relationship between seed weight and seedling development before and after drought treatment differed according to the developmental stage. |
New product development for mixed beverages of Aceh robusta coffee and cocoaShort CommunicationHeru Prono Widayat, Rachman Jaya, Heri Safrijal, Eka FitriaCzech J. Food Sci., 2022, 40(1):76-82 | DOI: 10.17221/94/2021-CJFS Aceh Province is known by the central production of not only Gayo coffee but also Robusta coffee. They are produced on the southwest coast and east coast for cocoa commodities. Meanwhile, there have been changes in lifestyles, especially in the millennial generation, including at Aceh Province. To reach the opportunity it is very urgent to realise a new product development based on beverages. Focuses of this research were to obtain a coffee-cocoa blend formulation that is suitable for consumers and economical to develop by agroindustry. The design of experiments was formulated for an Aceh Robusta coffee-cocoa mix with percentages of 20 : 80, 40 : 60, 60 : 40, and 80 : 20. The hedonic analysis was done to find out consumer preference by aroma, colour, flavour, and texture parameters. A feasibility study was calculated by R/C ratio (Revenue/Costs), BEP (break-even point; EUR) analysis. The result of the study shows that the Robusta coffee-cocoa formulation (RK4) was liked the most by panellists with flavour description as moderate bitter and strong cocoa aroma (RK3), meanwhile based on colour and texture aspect, the panellists prefered RK1 formulation. Whereas R/C ratio 1.19, BEP (EUR) 0.7 explain that the business deserves to be developed. |
Dietary supplementation of Lactobacillus zeae regulated the gut microbiome in piglets infected with enterotoxigenic Escherichia coliOriginal PaperQian Zhang, Lijuan Zhang, Yang Lyu, Yutao Shi, Liangyun Zhu, Min Zhang, Yuyan Zhao, Di Zhao, Lei Wang, Dan Yi, Yongqing Hou, Tao WuCzech J. Anim. Sci., 2022, 67(1):27-38 | DOI: 10.17221/136/2021-CJAS This study was conducted to investigate the effect of Lactobacillus zeae LB2 on the gut microbiota in piglets infected with enterotoxigenic Escherichia coli (ETEC). Thirty-two healthy 7-day-old piglets were randomly divided into four treatment groups: control group (basal diet), LB2 group (supplemented with 1 × 108 CFU/pig/day L. zeae LB2), ETEC group (infected with 1 × 1010 CFU/pig/day ETEC) and ETEC+LB2 group (LB2 supplementation + ETEC infection). Intestinal contents were collected for DNA extraction and Illumina sequencing. Significant result was observed for alpha diversity in the four intestinal sections, and both ETEC infection and LB2 supplementation showed a higher Chao1 alpha diversity. At the phylum level, Firmicutes and Bacteroidetes were dominant in the healthy piglets, while Proteobacteria were dominant in the ETEC-infected piglets. At the genus level, ETEC infection decreased the abundance of Prevotella, Ruminococcaceae, Lactobacillus, Alloprevotella, Flavobacterium, and Sutterella and increased the abundance of Actinobacillus. The LB2 supplementation reduced the abundance of Ruminococcaceae, Actinobacillus, Porphyromonas, and Alloprevotella, and increased the abundance of Prevotella and Lactobacillus. Both ETEC infection and LB2 supplementation affected several functional pathways associated with cellular processes, environmental information processing, genetic information processing, diseases, metabolism, and organismal systems. In summary, ETEC infection induced dysbiosis of the gut microbiome in piglets, while L. zeae supplementation could positively regulate the gut microbiome during ETEC infection. Therefore, L. zeae LB2 may be an ideal probiotic for the prevention or treatment of ETEC infection. |
Comparison of aeroponics and conventional system of production of potato mini-tubers in the conditions of the Czech RepublicOriginal PaperMilan Číľek, Zuzana KomárkováPlant Soil Environ., 2022, 68(8):366-374 | DOI: 10.17221/164/2022-PSE Aeroponics would appear to have a number of potential attributes to make potato production more efficient. In a 3-year experiment, from 2019 to 2021, potatoes were grown in aeroponic units using two nutrient solutions as well as in a conventional polycarbonate greenhouse in a substrate. Potato cultivars Adéla, Zuza and Ornella were used in all experiment years. No statistically significant effect of nutrient solution or potato cultivar on the number and weight of tubers was found in the trial. However, the advantages of aeroponics over conventional technology were statistically proven. The number of tubers per plant in aeroponic units ranged from 2.4 (2019, cv. Adéla) to 41.0 (2021, cv. Zuza), while in the greenhouse, they ranged from 3.9 (2019, cv. Adéla) up to 12.6 (2021, cv. Adéla). The average weight of tubers in aeroponic units ranged between 2.0 g and 9.9 g per plant (2 to 10 successive harvests), and in the greenhouse, 22.7 g to 41.9 g per plant (single harvest). The influence of cultivar on the average weight of tubers within individual cultivation technology variants was statistically proven only for polycarbonate greenhouse: only one harvest after the end vegetation. |
Benign ovarian teratoma in the dog with predominantly nervous tissue: A case reportCase ReportP Makovicky, AV Makarevich, P Makovicky, A Seidavi, L Vannucci, K RimarovaVet Med - Czech, 2022, 67(2):99-104 | DOI: 10.17221/55/2021-VETMED Ovarian teratomas are rare neoplasms in female dogs, and they are characterised by the proliferation of tissues of embryonic origin. Most teratomas are benign, but a histological diagnosis is important for clinicians. The objective of this article is to describe a benign ovarian teratoma in a dog, which was found on the street and was appearing like pregnant. A veterinary inspection by palpation documented an enlarged abdomen with a mass of tough matter located on the right side in the abdominal-pelvic part. An ultrasound examination presumed neoplastic mass in region of ovary. A bilateral ovariohysterectomy was performed and the subsequent histological evaluation revealed a benign ovarian teratoma with a histochemically and immunohistochemically verified nervous tissue. After one year, no distant metastases were found and the dog was recognised as being clinically healthy without problems. On the basis of the ultrasonography diagnostics and histopathological analyses, we have demonstrated the occurrence of a benign ovarian teratoma in a dog. |
Evaluation of chemical composition and cooking properties of Turkish type gluten-free rice couscousOriginal PaperEmine AydinCzech J. Food Sci., 2022, 40(6):427-437 | DOI: 10.17221/223/2021-CJFS In this study, the aim was to produce traditional couscous in gluten-free form. For this purpose, rice flour (RF) and pre-treated (gelatinized) rice flour (GRF) were added in varying proportions (15, 20, 25, and 30%) to the recipe instead of gums and enzymes in order to provide the desired structure. The control sample without GRF was also produced. With the addition of GRF, the total dietary fibre (TDF) content in the couscous samples increased, and reversely the carbohydrate and energy values decreased. The GRF reduced the level of total soluble organic material (TSOM) as well as the cooking loss of the couscous samples, which resulted in lower deformability. According to the results, the gluten-free rice couscous was successfully produced with GRF, especially at a 30% ratio. Good cooking properties were observed in these couscous samples. In this context, in the addition of 30% GRF, higher water absorption and swelling volume with lower cooking loss were observed compared with the control sample. In addition, the couscous samples had higher ash, dietary fibre and fat content as well as a lower phytic acid ratio (P < 0.05). It was determined that there was significant correlation between the cooking time of the samples with the cooking loss and total soluble organic material. According to the results, the PCA showed that there were clear correlations between cooking trials (water absorption and swelling volume) and chemical composition (moisture, ash, crude fat, and TDF). |
Effect of selective logging on the genetic differentiation of Juglans pyriformis Liebm. populationsOriginal PaperCelia Cecilia Acosta-Hernández, Lourdes Georgina Iglesias-Andreu, Mauricio Luna-Rodríguez, Pablo Octavio-AguilarJ. For. Sci., 2022, 68(12):509-518 | DOI: 10.17221/131/2022-JFS Juglans pyriformis Liebm. (Juglandaceae) is a threatened and endemic tree that grows in the cloud forest of Mexico. Natural populations of this species have been reduced due to, among others, changes in land use, overexploitation, and logging, with probable effects on its genetic diversity and structure. To determine the levels of variation and genetic structure of two populations with different silvicultural regimes, six inter-simple sequence repeat (ISSR) primers were used to amplify DNA from 35 individuals from a high-logging population and 32 from a low-logging population. The results show a higher polymorphism in the low-logging population (81.5%) compared to the high-logging population (77.4%). The genetic differentiation coefficient (PhiPT) values (0.109), genetic distance (0.134) and STRUCTURE analysis (Fst = 0.2271, P = 0.04) show significant genetic differentiation between populations. Rare, private, and monomorphic bands were detected in both populations. These results confirm the trend of reduced genetic variation due to logging. |
Effect of LED lights on the in vitro growth of Pinus pseudostrobus Lindl., plantsOriginal PaperLuis Alberto Marín-Martínez, Lourdes Georgina Iglesias-AndreuJ. For. Sci., 2022, 68(8):311-317 | DOI: 10.17221/43/2022-JFS Pinus pseudostrobus Lindl. is a species endemic to Mexico and is widely used in reforestation programmes, as it is highly adapted to poor, shallow, limestone soils and has high commercial importance. However, it is necessary to preserve this genetic material since it is in trouble due to high rates of deforestation, land use change, and forest fires, so it is necessary to have effective strategies to obtain good quality seedlings. Due to the properties of LED (light emitting diode) lamps used for illumination in the production of in vitro plants, the effects of two different lighting systems (LED and fluorescent) on an in vitro culture were analysed for the morphological characteristics of the growth and photosynthetic pigment content in P. pseudostrobus seedlings. The length and root size of the seedlings were affected by the type of illumination, where a red LED light was the most effective at 30 days of evaluation. However, a blue LED light was equally effective as a red LED light at 60 days of seedling development. On the other hand, the fluorescent light was better in terms of the number of needles in the first stage, but we found the blue LED light to be better in the second stage. For the photosynthetic pigment content, the highest values were found with the blue LED light. The results showed that the LED lighting system favours the growth, development, and photosynthetic pigment content of the species under study. |
In vitro compatibility of entomopathogenic fungus, Cladosporium cladosporioides with three plant extractsOriginal PaperMd. Touhidul Islam, Md. Anowarul Haque, Nur Uddin Mahmud, Dipali Rani Gupta, Tofazzal IslamPlant Protect. Sci., 2022, 58(3):213-219 | DOI: 10.17221/135/2021-PPS The in vitro compatibility of the entomopathogenic fungus, Cladosporium cladosporioides BOU1, with the crude extract of three plants viz. Calotropis gigantea, Vitex negundo and Carissa macrocarpa at a concentration of 1% and 2% was investigated. The compatibility of the fungal isolate with the plant extracts was calculated using the biological index formula from the germination percentage, radial growth and spore production of BOU1. The compatibility of the plant extracts with the fungal isolate was also assessed based on the protease and lipase activities of the treated fungus. Both concentrations of plant extracts did not significantly inhibit the germination percentage, radial growth and spore production of BOU1 in a dose-depended manner. The average mean values of the biological index for the three plant extracts with two concentrations were more than 98%. The analyses of the data with the compatibility index formula suggest that irrespective of concentration, all three plant extracts were compatible with BOU1. When the plant extracts were added to the fungal isolate, the protease and lipase activities of the fungal isolate were not significantly inhibited compared to the untreated control. The reduction in all the variables of fungal growth and the enzymatic activity was less than 10% and 20%, respectively. From these findings, we can conclude that the fungal biocontrol agent C. cladosporioides BOU1 is compatible with the investigated plant extracts in terms of the fungal growth and enzymatic activities. |
Effects of straw return and aeration on oxygen status and redox environment in flooded soilOriginal PaperYunhao An, Xiyun Jiao, Zhe Gu, Chuanmeng Shi, Kaihua LiuSoil & Water Res., 2022, 17(1):29-35 | DOI: 10.17221/87/2020-SWR To study the effects of straw return and aeration of the water layer on oxygen and redox status in the water column and at different depths in paddy field soil, a short-term incubation experiment was conducted with four treatments: (1) no straw return (NS); (2) straw return without aeration (S); (3) straw return and 30 minutes of aeration per day (SO30); and (4) straw return and 90 minutes of aeration per day (SO90). Compared to NS, S decreased dissolved oxygen (DO) and redox potential (ORP) by 23-58% and 47-53 mV, respectively, and increased active reducing substance (ARS) by 21-46% in the water and soil layers. The aeration treatments increased DO and ORP by 25-120% and 11-86 mV, respectively, and reduced ARS by 5-16% compared to S. The results indicated that straw return to paddy fields exacerbated hypoxia and reducing conditions in the soil. SO90 achieved better effects than SO30 in alleviating the negative impact of straw return by supplying more oxygen, but the effects weakened over time and with soil depth. |
Effects of ozonation on water quality and pikeperch (Sander lucioperca) performance in a recirculating aquaculture systemOriginal PaperJitka Kolářová, Jiří Křią»an, Oleksandr Malinovskyi, Josef Velíąek, Alľběta Stará, Samad Rahimnejad, Tomáą PolicarCzech J. Anim. Sci., 2021, 66(9):381-390 | DOI: 10.17221/54/2021-CJAS The aim of this study was to examine the effects of ozonation on the water quality, and growth, blood biochemistry, antioxidant capacity and survival of pikeperch (Sander lucioperca) reared in a recirculation aquaculture system for 30 weeks. A group without ozone treatment was used as a control. The ozone application led to a significant reduction of the water chemical oxygen demand, biological oxygen demand and unsuspended solids concentration. The results revealed that an ozone treatment as a water treatment method has a positive influence on the intensive culture of pikeperch ensuring a higher survival rate (77%) compared to the non-treated control group (67.2%). Moreover, the ozonation prevented fin damage to a large extent and reduced the prevalence of an Ichthyophthirius multifiliis infection. Furthermore, the ozone application led to a reduction in the thiobarbituric acid reactive substance level and enhanced the superoxide dismutase activity in the fish gills. However, the effect of ozonation was null on the plasma biochemical parameters. Overall, these findings suggest that an ozone treatment, using adequate technological equipment to destroy the residual ozone, improves the water quality and protects pikeperch against any possible infection and fin damage in a recirculation aquaculture system. |
Optimising the root traits of summer maize to improve nutrient uptake and utilisation through rational application of urea ammonium nitrate solutionOriginal PaperZhentao Ma, Baizhao Ren, Bin Zhao, Peng Liu, Jiwang ZhangPlant Soil Environ., 2022, 68(2):98-107 | DOI: 10.17221/335/2021-PSE The production of summer maize is greatly affected by nitrogen (N) sources through regulating root growth and distribution. Four N treatments in the field experiment were designed as UAN (urea ammonium nitrate solution was applied under traditional side-dressing method), urea (urea was applied under traditional side-dressing method), UWFI (UAN was applied underwater and fertiliser integration technology) and CK (no N applied). The results showed that the root length density, surface area density and volume of DH605 (mid-late hybrid) and DH518 (mid-early hybrid) under UWFI were higher than other treatments, especially in shallow layers. The root absorption area of each soil layer under N application treatments varied with the growth stage. The grain yield and the accumulations of N, P and K in the shoots showed the trend of UWFI > UAN > urea > CK. Compared with UAN and urea, the nitrogen agronomic efficiency of UWFI treatment increased by 40.5~78.6%, and the nitrogen partial factor productivity increased by 4.75~7.61%. Consequently, rational application of UAN would improve root traits, nutrient uptake and utilisation, and yield of summer maize. |
A superior genetic source for late leafing in walnut 'Ahir Nut'Original PaperMehmet Sütyemez, Akide Özcan, Şakir Burak BükücüHort. Sci. (Prague), 2022, 49(4):205-212 | DOI: 10.17221/22/2022-HORTSCI One of the main objectives of walnut crossbreeding programmes is to produce cultivars with late leafing dates. Sixteen years ago, a walnut crossbreeding programme was initiated by Prof. Mehmet Sütyemez, and now a new walnut genotype, namely 'Ahir Nut', has been generated with a leafing date that starts later than all commercially-famous walnut cultivars in the world. The present study describes this walnut genotype. For a detailed analysis, 'Ahir Nut' was compared with two French-origin walnut cultivars, i.e., 'Franquette' and 'Ronde de Montignac', which have had the latest leafing dates until now. In an experimental orchard in Turkey, the leafing date in 'Ahir Nut' was 14 May, whereas the leafing date in 'Franquette' and 'Ronde de Montignac' were 23 April and 25 April, respectively. This approximately 3-week difference between 'Franquette' and 'Ronde de Montignac' to 'Ahir Nut' reveals how valuable this genotype is for walnut breeding studies. The harvest dates for 'Ahir Nut', 'Franquette' and 'Ronde de Montignac' were 4 October, 3 October, and 7 October, respectively. The defoliation date for 'Ahir Nut' was 4 December. The nut weight and kernel percentage of 'Ahir Nut' were calculated as 11.61 g and 49.84%, respectively. Remarkable phenological traits were found in 'Ahir Nut', making it a promising option for future walnut cultivation. In the present study, the late leafing date of 'Ahir Nut' prompted further research into the molecular and walnut crossbreeding potentials. This new genotype has been conserved as an important genetic resource for future walnut breeding programmes around the world. |
X-ray based computed tomography, a non-invasive approach in order to assess the damage caused by Lamprodila festiva of hidden lifestyleOriginal PaperSándor Keszthelyi, Tamás Sipos, Ádám Csóka, Tamás DonkóPlant Protect. Sci., 2022, 58(1):65-69 | DOI: 10.17221/78/2021-PPS The cypress jewel beetle Lamprodila (Palmar) festiva is a wood-boring pest posing a major threat to the phytosanitary conditions of several coniferous trees. Its unprecedented European expansion has triggered serious plant protection concerns in several new habitats. Parts of Chamaecyparis lawsoniana injured by L. festiva were collected and analysed by computed tomography in order to study the dimensions of the cavities caused by L. festiva larvae as well as the larval positions. It is concluded that computer tomography representing a non-invasive approach is a promising tool for the visual depiction of the position and the physical parameters of the cavities formed. According to our experimental data, the penetration into the cypress caused by larvae and, inherently, its depth depends on the diameter of the branch. Additionally, the developing larvae appeared to keep distance from each other, which also depended on the diameter of the attacked branch. Our approach provides new data to the biological traits of the species. The main benefit that our imaging method furnishes is the exact, stress-free measurement method of the hidden developing stages. Its additional advantage is the indirect pest identification, which is based on the predetermined pest-specific damage characters. |
Characterisation of bamboo (Bambusa tuldoides) culm flour and its use in cookiesOriginal PaperCrislayne Teodoro Vasques, Maiara Pereira Mendes, Denise de Moraes Batista da Silva, Claudia Cirineo Ferreira Monteiro, Antonio Roberto Giriboni MonteiroCzech J. Food Sci., 2022, 40(5):345-351 | DOI: 10.17221/23/2022-CJFS This study aimed to develop a bamboo culm flour (BCF) to be used in the formulation of cookies, replacing 15% and 30% of wheat flour (WF). The parameters analysed for bamboo flour and cookies were moisture, ash, protein, fat, fibre and carbohydrates. For the flour, the water absorption index (WAI) and water solubility index (WSI) were also determined. BCF is a good source of protein, with a low lipid content and high fibre content, presenting the potential to be used in several food products. For the cookies produced, hardness, sensory analysis and purchase intent were analysed. In the sensory analysis of acceptability, the samples that showed better acceptance were the control formulation and the 15% BCF cookie; in the same sample, crude fibre increased from 5.92 g (100 g)-1 to 11.64 g (100 g)-1 compared to the control, and the intention to purchase the 15% sample was worse than for the control but still good: the majority of tasters said they certainly or maybe would buy. Thus, it is possible to conclude that the use of BCF is considered an excellent option to enrich cookies while keeping them acceptable nutritionally. |
Advances in wheat breeding for resistance to Fusarium head blightReviewKahsay Tadesse Mawcha, Na Zhang, Yanan Wang, Wenxiang YangCzech J. Genet. Plant Breed., 2022, 58(4):167-188 | DOI: 10.17221/1/2022-CJGPB Fusarium head blight (FHB), mainly caused by Fusarium graminearum, is one of the most devastating diseases of wheat globally. FHB causes an extensive reduction in yield and reduces the grain quality through its contamination with Fusarium toxins such as deoxynivalenol (DON), T2 toxin, HT-2 toxin, nivalenol, and zearalenone. This review provides an overview of updated progress of genetic studies on the resistance to FHB, with an emphasis on the sources of resistance to FHB, resistance gene/quantitative trait loci (QTL) mining, resistance gene cloning, major FHB resistance genes/QTL identification by molecular markers, and resistance mechanisms. The achievements of resistance breeding based on phenotype selection and molecular markers was also summarised. Based on the systematic analysis of breeding limitations and utilisation of FHB resistant materials, the authors put forward three suggestions: First, to toughen the resistance identification of wheat, testing traits such as Fusarium damaged kernel and DON need special attention as visual symptoms are less reliable, resistant varieties should be popularised, and the screening the resistant genes should be strengthened; The second is to use the additive effect of quantitative resistance genes accumulated from existing varieties to reduce the cost of resistance in order to create high yielding resistant varieties. Thirdly, to enhance research and utilization of new genes. |
